Compared across 3 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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The PAC AmpPRO SUB is a compact Class D mono amplifier made to add a subwoofer to factory car audio systems without replacing the head unit. It takes the signal from the factory radio through PAC's AmpPRO interface and delivers RMS power to a single sub. Its small footprint and Class D design suit hidden installs behind trim or under a seat. Reviewers like the clean integration with stock systems; some find the setup and tuning fussier than a plain aftermarket amp.
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Lowest price we've seen: $299.00 on Nov 9 at Abt Electronics. Tracked across 3 stores since Nov 9.
Owners who keep their factory stereo generally report clean, reliable bass and an easy-to-hide install. The main complaints are the setup process and limited tuning versus a dedicated aftermarket amp.
